I am planning to do some work on my 97GT this spring, so I am trying to figure out a new combo. It will definately involve E85 and natural aspiration, thus we need to increase the compression ratio.
Putting PI heads on my NPI bottom end should give my around 10.5:1 compression, but I could easily use more. Does anyone have experience with shaving their head? My concerns are PTV clearance and fitment of the intake manifold. How much can you go before these issues come up?
Putting PI heads on my NPI bottom end should give my around 10.5:1 compression, but I could easily use more. Does anyone have experience with shaving their head? My concerns are PTV clearance and fitment of the intake manifold. How much can you go before these issues come up?